Expansion and Contraction: Approximately 5.9% radial, 7.2% tangential, and 12% volumetric. A 6” air-dried board will move an average of 1/16”. There is a small movement after milling as well.

Fire resistance: In Canada, the Black Label^® decking board has passed the Intermittent Flame Test and The Spread of Flame Test for the CAN/ULC S107 equivalent of ANSI /UL 790 (Standard Methods of Fire Tests of Roof Coverings) and is rated Class A. This makes it suitable for a rooftop finishing material in non-combustible building class buildings, putting it in the same class as steel. In the U.S., Black Label^® wood has been tested by the National Fire Protection Agency, which gave it the highest Flame spread classification: Up to Class A, Uniform Building Code, Class 1.

Termite resistance: Black Label^® has received the highest rating from the U.S. Naval Research Laboratory.

Durability and longevity: Untreated Black Label^® decking will last 40 years and more. If the deck is oiled or finished on all four sides before installation, it can last 70+ years.